A needle protection structure for a safety syringe

Abstract

The utility model discloses a needle protection structure of safe syringe belongs to needle protection technical field, and its technical key points include syringe main part, the surface of syringe main part is equipped with the protective cover, the surface of syringe main part is fixedly connected with two positioning rails, the inner wall of protective cover is all set with the sliding slot in the position corresponding with two positioning rails, this utility model forms the airtight structure through the mutual adhesion of silica gel plate of protective cover bottom, effectively blocks the outside dust and enters, and waterproof paper prevents liquid infiltration further, and the needle is double -protected clean. The silica gel plate breaks the waterproof paper through the elastic deformation, avoids the needle to directly contact the waterproof paper and produces the debris, prevents the pollutant from entering the needle interior, through the cooperation of forcing clamp and rubber pad, and pinch the forcing clamp, and the needle can be clamped, and when pulling down, separates the needle and syringe directly, need not barehanded contact sharp part, reduces the risk of scratching.

Description

Technical Field

[0001] This utility model belongs to the field of needle protection technology, specifically relating to a needle protection structure for a safety syringe. Background Technology

[0002] A needle is often inserted into a small hole at the front end of the syringe barrel. The needle consists of a connecting sleeve that connects to the small hole at the end of the syringe barrel and a needle tube fixed on the connecting sleeve. A protective sleeve for protecting the needle tube is usually installed on the connecting sleeve.

[0003] A search revealed Chinese patent CN213852525U, which discloses a syringe needle with a protective cap. The needle includes a connecting sleeve and a syringe tube, and the protective cap is a hollow cylindrical sleeve that is inserted into the connecting sleeve. However, existing needles and protective caps are basically separate. After removing the protective cap, it is very likely that the protective cap will be lost, which may injure the recycling personnel when the needle is discarded. Utility Model Content

[0004] The purpose of this invention is to provide a needle protection structure for a safety syringe to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a needle protection structure for a safety syringe, comprising a syringe body, a protective cover covering the surface of the syringe body, two positioning rails symmetrically fixedly connected to the surface of the syringe body, and a sliding groove provided on the inner wall of the protective cover at a position corresponding to the two positioning rails, the protective cover being slidably connected to the positioning rails through the sliding grooves, and a plurality of silicone plates being uniformly fixedly connected to the bottom end of the protective cover.

[0006] Preferably, the silicone plate has a triangular structure, and the inclined surfaces of each silicone plate are in contact with each other. Each silicone plate is arranged in an array at the bottom of the protective cover with its tip and axis. The end of the silicone plate near the inner wall of the protective cover is fixedly connected to the protective cover.

[0007] Preferably, a waterproof paper is provided below the protective cover, and the top surface of the waterproof paper is fixedly connected to the bottom surface of the silicone plate.

[0008] Preferably, the surface of the protective cover is rotatably connected to a positioning ring, and two positioning plates are symmetrically fixedly connected to the inner wall of the positioning ring. The positioning plates penetrate the surface of the protective cover and are slidably connected to the positioning rail.

[0009] Preferably, a handle is fixedly connected to the surface of the positioning ring, a limiting frame is fixedly connected to the surface of the protective cover, a positioning clip is slidably connected inside the limiting frame, a pin is inserted inside the limiting frame, the pin passes through the positioning clip through the limiting frame, and the inner wall of the positioning clip is in contact with the handle.

[0010] Preferably, the positioning clamp has a Y-shaped structure with the fork end facing upwards.

[0011] Preferably, a limiting rod is fixedly connected to the surface of the protective cover, and the limiting rod is in contact with the handle.

[0012] Preferably, the protective cover has two symmetrically arranged positioning grooves on its surface, and each positioning groove is provided with a force-applying clamp inside. The force-applying clamp is rotatably connected to the protective cover through a positioning shaft. A rubber pad is fixedly connected to the top surface of each force-applying clamp, and the rubber pad is in contact with the protective cover through the positioning groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model utilizes a sealed structure formed by the interlocking silicone plates at the bottom of the protective cover, effectively preventing external dust from entering; the waterproof paper further prevents liquid seepage, providing double protection for needle cleaning. The silicone plates, through elastic deformation, puncture the waterproof paper, preventing the needle from directly contacting the waterproof paper and generating debris, thus preventing contaminants from entering the needle and improving safety during use.

[0015] 2. This utility model uses a positioning rail to slide and connect with the syringe body, making it less prone to displacement during movement. The protective cover is always connected to the syringe to prevent separation and loss. The linkage design of the positioning ring and handle can quickly lock and unlock the position of the protective cover. The limit rod ensures accurate rotation angle and prevents the protective cover from accidentally sliding down during injection. The operation is convenient and stable.

[0016] 3. This utility model utilizes a force-applying clamp and a rubber pad. Squeezing the clamp secures the needle, and pulling it down directly separates the needle from the syringe, eliminating the need for hand contact with sharp parts and reducing the risk of cuts. This design facilitates the separate disposal of needles and syringes, reducing cross-contamination of medical waste and meeting environmental protection and hospital infection control requirements. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of the protective cover of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective cover and force-applying clamp structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the force-applying clamp and rubber pad structure of this utility model;

[0021] Figure 5 This utility model Figure 1 Enlarged view of part A;

[0022] Figure 6 This utility model Figure 2 Enlarged view of part B.

[0023] In the diagram: 1. Syringe body; 2. Protective cover; 3. Positioning rail; 4. Silicone plate; 5. Waterproof paper; 6. Handle; 7. Positioning ring; 8. Positioning plate; 9. Limiting rod; 10. Positioning clamp; 11. Limiting frame; 12. Pin; 13. Force clamp; 14. Rubber pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 This utility model provides a needle protection structure for a safety syringe, including a syringe body 1. A protective cover 2 is fitted onto the surface of the syringe body 1. Two positioning rails 3 are symmetrically fixedly connected to the surface of the syringe body 1. Sliding grooves are formed on the inner wall of the protective cover 2 at positions corresponding to the two positioning rails 3. The protective cover 2 is slidably connected to the positioning rails 3 through the sliding grooves. Several silicone plates 4 are uniformly fixedly connected to the bottom end of the protective cover 2. The silicone plates 4 have a triangular structure, and the inclined surfaces of each silicone plate 4 are mutually abutting. Each silicone plate 4 is arranged in an array at the bottom end of the protective cover 2 with its tip and axis. The end of the silicone plate 4 closest to the inner wall of the protective cover 2 is fixedly connected to the protective cover 2. A waterproof paper 5 is provided below the protective cover 2. The top surface of the waterproof paper 5 is fixedly connected to the bottom surface of the silicone plate 4. In order to prevent the protective cover 2 from detaching from the surface of the syringe body 1 when using the syringe body 1, when using the syringe body 1, the syringe body 1 is pulled away from the needle. The protective cover 2 will slide on the surface of the positioning rail 3, which avoids the position shift when moving again. When the protective cover 2 moves upward, the needle will press against the top surface of the silicone plate 4. The silicone plate 4 will bend outward under the force until the silicone plate 4 breaks through the waterproof paper 5, so that the needle can be exposed and the syringe body 1 can be used. This also avoids the phenomenon of the protective cover 2 being lost due to separation.

[0026] Several silicone plates 4 are attached together to prevent external dust from entering, and the waterproof paper 5 can prevent water from entering the interior of the protective cover 2. When the needle applies force to the silicone plate 4, the silicone plate 4 will puncture the waterproof paper 5, avoiding direct contact between the needle and the waterproof paper 5, which would cause debris from the waterproof paper 5 to enter the needle.

[0027] In this embodiment, a positioning ring 7 is rotatably connected to the surface of the protective cover 2. Two positioning plates 8 are symmetrically fixed to the inner wall of the positioning ring 7. The positioning plates 8 penetrate the surface of the protective cover 2 and are slidably connected to the positioning rail 3. A handle 6 is fixedly connected to the surface of the positioning ring 7. A limit frame 11 is fixedly connected to the surface of the protective cover 2. A positioning clamp 10 is slidably connected inside the limit frame 11. A pin 12 is inserted inside the limit frame 11. The pin 12 passes through the limit frame 11 and through the positioning clamp 10. The inner wall of the positioning clamp 10 fits against the handle 6. The positioning clamp 10 has a Y-shaped structure. With the fork end facing upwards, before lifting the protective cover 2 upwards, first pull the pin 12 out from inside the limiting frame 11, thereby releasing the limiting of the positioning clip 10. The positioning clip 10 will move downwards inside the limiting frame 11, thereby releasing the limiting of the handle 6. Then apply force to the handle 6 to make the positioning ring 7 rotate with the positioning plate 8 until the positioning plate 8 releases the limiting of the protective cover 2, and the protective cover 2 can be lifted. After the needle is completely exposed, turn the positioning plate 8 back to limit the protective cover 2 and prevent the protective cover 2 from moving downwards when the syringe body 1 is in use.

[0028] In this embodiment, a limiting rod 9 is fixedly connected to the surface of the protective cover 2. The limiting rod 9 and the handle 6 are in contact with each other. When force is applied to the handle 6, the handle 6 rotates around the center of the positioning ring 7 until the handle 6 and the limiting rod 9 come into contact with each other. This proves that the positioning plate 8 has rotated to a suitable angle and the limiting of the protective cover 2 has been released.

[0029] In this embodiment, two positioning grooves are symmetrically opened on the surface of the protective cover 2. Each positioning groove is provided with a force-applying clamp 13. The force-applying clamp 13 is rotatably connected to the protective cover 2 through a positioning shaft. A rubber pad 14 is fixedly connected to the top surface of each force-applying clamp 13. The rubber pad 14 is in contact with the protective cover 2 through the positioning groove. After the syringe body 1 is used, in order to avoid cross-infection, the needle and syringe tube need to be discarded. First, the limit on the protective cover 2 is released, and then force is applied to the two force-applying clamps 13, so that the force-applying clamps 13 rotate through the positioning shaft until the rubber pad 14 is in contact with the needle and squeezed. Then, the protective cover 2 is pulled down, and the protective cover 2 will drive the needle to detach from the syringe body 1, thus realizing the classified disposal.

[0030] The use of this utility model involves the following steps:

[0031] S1: To prevent the protective cover 2 from detaching from the surface of the syringe body 1 when using the syringe body 1, when using the syringe body 1, pull the syringe body 1 away from the needle. The protective cover 2 will slide on the surface of the positioning rail 3, preventing the position from shifting when moving again. When the protective cover 2 moves upward, the needle will press against the top surface of the silicone plate 4. The silicone plate 4 will bend outward under force until the silicone plate 4 breaks through the waterproof paper 5, allowing the needle to protrude and the syringe body 1 to be used. This also prevents the protective cover 2 from being lost due to separation.

[0032] S2: Several silicone plates 4 are attached to each other and closed together to prevent external dust from entering, and waterproof paper 5 can prevent water from entering the interior of the protective cover 2. When the needle applies force to the silicone plate 4, the silicone plate 4 will puncture the waterproof paper 5, avoiding direct contact between the needle and the waterproof paper 5, and preventing the debris of the waterproof paper 5 from entering the needle.

[0033] S3: Before lifting the protective cover 2 upwards, first pull the pin 12 out from the inside of the limiting frame 11, thereby releasing the limiting of the positioning clip 10. The positioning clip 10 will move downwards inside the limiting frame 11, thereby releasing the limiting of the handle 6. Then apply force to the handle 6 to make the positioning ring 7 rotate with the positioning plate 8 until the positioning plate 8 releases the limiting of the protective cover 2, and the protective cover 2 can be lifted. After the needle is completely exposed, turn the positioning plate 8 back to limit the protective cover 2 and prevent the protective cover 2 from moving downwards when the syringe body 1 is in use.

[0034] S4: When force is applied to handle 6, handle 6 rotates around the center of positioning ring 7 until handle 6 and limit rod 9 come into contact with each other, which proves that positioning plate 8 has rotated to the appropriate angle and released the limit on protective cover 2.

[0035] S5: After the syringe body 1 is used, in order to avoid cross-infection, the needle and syringe tube need to be discarded. First, loosen the limit on the protective cover 2, and then apply force to the two force clamps 13 so that the force clamps 13 rotate through the positioning shaft until the rubber pad 14 and the needle are in contact and squeezed. Then pull the protective cover 2 down, and the protective cover 2 will drive the needle to detach from the syringe body 1, thus achieving classified disposal.

[0036] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0037] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A needle protection structure for a safety syringe, comprising a syringe body (1), characterized in that: The surface of the syringe body (1) is covered with a protective cover (2). Two positioning rails (3) are symmetrically fixedly connected to the surface of the syringe body (1). The inner wall of the protective cover (2) is provided with a sliding groove at the position corresponding to the two positioning rails (3). The protective cover (2) is slidably connected to the positioning rails (3) through the sliding groove. Several silicone plates (4) are uniformly fixedly connected to the bottom end of the protective cover (2).

2. The needle protection structure of a safety syringe according to claim 1, characterized in that: The silicone plate (4) has a triangular structure, and the inclined surfaces of each silicone plate (4) are in contact with each other. Each silicone plate (4) is arranged in an array at the bottom of the protective cover (2) with its tip and axis. The end of the silicone plate (4) near the inner wall of the protective cover (2) is fixedly connected to the protective cover (2).

3. The needle protection structure of a safety syringe according to claim 1, characterized in that: A waterproof paper (5) is provided below the protective cover (2), and the top surface of the waterproof paper (5) is fixedly connected to the bottom surface of the silicone plate (4).

4. The needle protection structure of a safety syringe according to claim 1, characterized in that: The surface of the protective cover (2) is rotatably connected to a positioning ring (7). Two positioning plates (8) are symmetrically fixed to the inner wall of the positioning ring (7). The positioning plates (8) penetrate the surface of the protective cover (2) and are slidably connected to the positioning rail (3).

5. The needle protection structure of a safety syringe according to claim 4, characterized in that: A handle (6) is fixedly connected to the surface of the positioning ring (7), and a limiting frame (11) is fixedly connected to the surface of the protective cover (2). A positioning clip (10) is slidably connected inside the limiting frame (11), and a pin (12) is inserted inside the limiting frame (11). The pin (12) passes through the positioning clip (10) through the limiting frame (11), and the inner wall of the positioning clip (10) is in contact with the handle (6).

6. The needle protection structure of a safety syringe according to claim 5, characterized in that: The positioning clamp (10) has a Y-shaped structure with the fork end facing upwards.

7. The needle protection structure of a safety syringe according to claim 5, characterized in that: A limiting rod (9) is fixedly connected to the surface of the protective cover (2), and the limiting rod (9) is in contact with the handle (6).

8. The needle protection structure of a safety syringe according to claim 1, characterized in that: The protective cover (2) has two symmetrically arranged positioning grooves on its surface. Each positioning groove is equipped with a force-applying clamp (13). The force-applying clamp (13) is rotatably connected to the protective cover (2) through a positioning shaft. Each force-applying clamp (13) has a rubber pad (14) fixedly connected to its top surface. The rubber pad (14) is in contact with the protective cover (2) through the positioning groove.

Images